Knife-sharpener.



UNITED sTATEs'PATENT OFFICE.

EDWARD c. ToBIN, oF srookroiv, CALIFORNIA To allwhom z't may concern:

Beit known that I, EDWARD C. Toom, a H citizen of the United States, residing at tockton, in the' county of San Joaquin and '5 State of Californiayhave invented certain new and useful Improvements in Knife- Sharpeners, of which the following is a specification, reference being had to the aceolnlpanying drawings. y i T is invention relates to sharpening devices,and particularly to devices for sharpl. ening knives, scissors, and likeblades.`

4 The general object of this invention is the "provision of a very simple, cheaply made,.easily.operated and effective device of this character, and further to provide coacting sharpening disks normally held from relativerotation but shiftable so that new sharpening surfaces may be presented whenzo 'eyer'desired ".-Still another object of the invention is the revision ofmeans which will adapt the evice to sharpening scissors, this means beingshiftable into a position .where it will prevent one face of a blade from coming in icontact with ,the sharpening disk.

Still another object of the invention is the provision of a base which not only supports two sets of co-acting sharpening disks,

so'but also supports a whet stone or hone in convenient position for use. I Other objects will appear in the course of the following description. vMy invention is illustrated in the accom- 3'5 penyingydrawing wherein; 'Figure 1 is an end elevation of my im*- proved Sharpener; 4, Fig. 2 is a longitudinal section on the line 2--2 of Fig. 1; Fig. 3'is a top plan view of thedevi-ce; and l Fig. 4 is an elevation partly in section of one of the pair of sharpening disks.

Figiy 5 is an elevation looking toward the 45. inside face lof the sharpening device;

Fig. 6 is a fragmentary vertical section through the disk 26, the plates 16 and 19, the "hub118, and the guard 33. 4 l.Referring topthese figures, 10 designates a' base which' is approximately rectangular "in-"form as illiistrated clearly in Fig. 3', and 'provided with the feet`A 11, `whereby the base "ma be attached to' a` support. 4The end Vljfwall l2 of -this base is extended upward l551i above the baste andis formed at its middle Bpeccation of Letters Patent.

KNIFE-SHABPE'NEB. v

Application led Marc'n 8, 1916. 'Serial No. 82,988.

with a downward extendzd V-shaped notch 13 which divides the upper portion of this end wall into two lobes 15 andf 1G. Securely attached tothe lobe 15 and extending out therefrom is a hub 17, and securely attached to the lobe 1G is a hub 1E which is counterbored and screw-threadid. Disposed in parallel relation to the and plate 12 is a supporting plate 19 wlich has apprfmii` mately the same form as the plate 12, and which is divided by a vertically-disposed notch into lobes 20 and 21. The lower end of the plate 19 is formed with inwardly extending feet 22 and passing through the of each disk is beveled or sharpened at 28.

Disposed between the pair of Shar enin'g disksV 25 and the Vplate 12 is a was er 29 while disposed between the pair of sharpening disks 26 and the pl ite 19 is a `washer 30. The sharpening dislis of one pair are thus disposed in staggered relation to the sharpening disks of the therppair as illustrated most clearly in Fi g. 3""T=hese pairs of sharpening disks are rc tatable u 'on their `hubs 17 and 18 but may be held rom any rotation by turning u'pffrpon the screw '23 causing the plate 19 to fritionally engage the sharpening disks and prevent any movement of the sharpening disks. Extending into the counter-bore of a hu 18 is a screw 31, and pivotally mounted upon this-screw 31 fisa L-shaped guard 3,3', which extends radially ou vward thenis bent transversely overl the ed ges' of the' -disks 2b' and then extends radi illy inward foral short distance against the 'aee of the platef' 12. When this -guard 33 is turned to ther position shown in full lir es in Fig. 1, it'is ineffective-but when yit is turned to `dotted line position in this figure, itprovides :for the sharpening orf scissors or like blades.

so i

Disposed within the rextangular base 10 and supported therein in my l suitable manner, is a whet stone 34.,

In practical use when it is desired to sharpen a. knife or like blade, the guard 38 parallel to the axes of the disks again clamped against rotation.

' `ments having one face of Y @25 Voperate-iipon "the" blade.

e0 .desk

is yturned back to the full line osition in Fig. 1, and the knife placed lig tly down vbetween the oppositelydisposed sharpening disks25 and 26, so that-the knife extends these disks, the edge of the yknife being of course downward. VThe'kn'ife lis` then drawm li htlylglong the edges ofthe disks until a su cient' edge has been secured. If the sharpenin edges of become dull. and ine ective, the screviy 23 is loosened permitting 4the disks 25 and 26 to be turned so as to present a new edge or surface inthe cleft formed between the disks. When 4vso adjusted, the disks are If it be scissors or like implethe blade Haft and the other face with a beveled edge, the guard 33 is turned to the dotted line positionA in ydesired to sharpen Fig.v1,andf this holds the blade from con- .tact with therdisks 26, and theptherdisks The 4use. of the hone or whet stone 34 will be obvious. It is plain Y,

'regrinding and that new disks can be readilyinserted. The deviceis veryfsimple and can be cheaply made, and is small enough to permit it to be placed in a'onvenient position on the use of the desk.

pivotally mounted upon that the disks and 26 may be readwhen 'desired,f

without interfering with the ordinary Having thus described my invention what 1. A' sharpening device includingl supporting members oppositely dis sed sharpening disks rotatably mount upon stud overl sharpening disks from rotation, anda ard shifta-ble into a position overone o said sharpening, disks and in intersection of the disks.

2'.- A 'sharpening device including ening disks rotatably mounte y l supporting `members and having slightly overlapping margins, means for holding said sharpening disks from rotation, and a ard shiftable -into positions over one o saidsharpening disks and proximity to the intersection of the disks, p

` onel ofsaid extending radially porting members, out- Ward and transversely acyo'ss the sharpening disks. In testimony Witnesses: v

W. E; Rosa, Z. F. PARNEI'JL.

'as l supporting members and havingv'slightlyl lapping margins, means for holding said of .proximity to the A l ,i Sup-'- porting` members oppositely disposed sharp'- y upon saidv sv said guard being"V SUP' .whereof I v:hereunto affix my slgnature in the presence of two witnesses.`

EDWARD. o.' ToB'IN. 

